I'm not sure I understand this one. Did the cat wake up from drinking coffee? What does the light have to do with it?

The cat was sleepy because it was morning, when she drinks coffee she is bright and bushy tailed. The light thing is instructions for the person holding the advertisement to put it up to the light so we can see her open her eyes. Only the first picture is the ad. The image is a before and after putting the ad up to the light.

You trying to tell me you didn't hear that shriek? That was something trying to get out of its premature grave, and I don't want to be here when it does. - Phantom of the Paradise (1974)